There seems to be some issues with the landing function in ./software/px4_mavros_scripts/1_px4_mavros_offboard_controller/commander.py.

To do:

1. Test the land function and report if it works well.
2. Fix if there is an issue.

Some text editors (e.g. vim) save temporary files in the same directory as the file being edited. So, if you edit an airline xxx.json, the assembler may found .xxx.json.swp in the assets/airlines dir, include it in the package and fail:

[13:37:30] SyntaxError: Unexpected token b in JSON at position 0
    at Object.parse (native)
    at fs.readdirSync.forEach (/home/grand/openscope/to

This is straightforward, just go through the links and remove or update any broken.